BS6 Dual USB Charging Bluetooth FM Transmitter Wireless Headset MP3 Music Player Car Kit for Mobile Phone, Support Hands-Free Call & Micro SD Card

Bluetooth version: 4.2
Frequency: 20h-20KHZ
Sensitivity: -42db+/3db 360
Working current: 45mA (maximum)
Standby current: 25mA (maximum)
Frequency: 2.402-2.480ghz
Effective distance: 5 meters
Sensitivity: -92 dBm
RF output: 4 dBm
FM: 87.5MHz-108.0MHz
Transmit power: 87 dBuv/107dBuv
Effective distance: 2 meters

1. Full frequency FM transmitter, Supports line audio input,Supports U disk/ TF card player
2. Dual USB output ports, the maximum output 5V/2.1A, Supports MP3 / WMA format music,Wireless stereomusic play
3. Wireless answer /hang up /reject /redial calls and otherfunctions
4. Echo cancellation and noise suppressin(CVC)technology during a call
5. Automatic power off memoryfuntion, store the playing frequency